Subatomic mechanism of the oscillatory magnetoresistance in superconductors

被引:0
作者
Ivlev, B. I. [1 ]
机构
[1] Univ Autonoma San Luis Potosi, Inst Fis, San Luis Potosi 78000, Mexico
关键词
electron-electromagnetic interaction; fluctuations; spin; PHASE-BOUNDARY; NETWORKS; STATES; QUANTIZATION;
D O I
10.31349/RevMexFis.64.261
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In the recent experiments [1] the unusual oscillatory magnetoresistance in superconductors was discovered with a periodicity essentially independent on magnetic field direction and even material parameters. The nearly universal period points to a subatomic mechanism of the phenomenon. This mechanism is related to formation inside samples of subatomically thin (10(-11) cm) threads in the form of rings of approximately Bohr radius. Electron states of rings go over into conduction electrons which carry the same spin imbalance in energy as rings. The imbalance occurs due to spin interaction with the orbital momentum of the ring. The conductivity near This determined by fluctuating Cooper pairs consisting of electrons with shifted energies. Due to different angular momenta of rings these energies periodically depend on magnetic field resulting in the observed oscillatory magnetoresistance. Calculated universal positions of peaks (n + 1/2) Delta H (Delta H similar or equal to 0.18T and n = 0, 1, 2 ...) on the R (H) curve are in a good agreement with measurements.
引用
收藏
页码:261 / 274
页数:14
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